Last week the game system was $450. this week the system is on sale for $337.50. by what percent is the price reduced?

Pick the expression that matches this description: a polynomial of the 5th degree with a leading coefficient of 7 and a constant term of 6 (choice a) 7x^5+2x^2+6 (choice b) 7x^6−6x^4+5 (choice c) 6x^7−x^5+5 (choice d) 6x^5+x^4+7

What number is 7 units left of -15?

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)